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Torsion and the Gravity Dual of Parity Symmetry Breaking in AdS4/CFT3 Holography
Robert G. Leigh, Nam N. Hoang, Anastasios C. Petkou
We study four dimensional gravity with a negative cosmological constant deformed by the Nieh-Yan torsional topological invariant with a spacetime-dependent coefficient. We find an…
Gravity in the 3+1-Split Formalism II: Self-Duality and the Emergence of the Gravitational Chern-Simons in the Boundary
Diego S. Mansi, Anastasios C. Petkou, Giovanni Tagliabue
We study self-duality in the context of the 3+1-split formalism of gravity with non-zero cosmological constant. Lorentzian self-dual configurations are conformally flat spacetimes…
Gravity in the 3+1-Split Formalism I: Holography as an Initial Value Problem
Diego S. Mansi, Anastasios C. Petkou, Giovanni Tagliabue
We present a detailed analysis of the 3+1-split formalism of gravity in the presence of a cosmological constant. The formalism helps revealing the intimate connection between holog…
An N=1 Superfield Action for M2 branes
Andrea Mauri, Anastasios C. Petkou
We present an octonionic N=1 superfield action that reproduces in components the action of Bagger and Lambert for M2 branes. By giving an expectation value to one of the scalars we…